With the curved turnouts (we have a #8 curved on our layout) you have to wire in the closure rails (rails between the points and the frog) as alternate hot rails using a set of SPDT contacts on a tortoise switch motor. This will prevent stalling by locomotives with incompatible pickup roller spacing. If you're using Z-stuff switch motors, add the Z-stuff SPDT relay to the control. Also, make sure that both sets of stock rails are properly tied to common. This approach is also advisable on longer straight turnouts (#6, #8, #10) as well.
BTW, Mike, love the work on the layout. Looks great. Also like the sea wall construction technique -- first rate.